So today I get a bill in the mail from IDOT stating that I owe them $60+ for unpaid tolls. $20 for each missed toll, times three, plus the $1 or $1.50 for each toll across two different days (two on one day, one on another). Funny thing is, I logged into my account and it said that on the same days I missed tolls, IDOT registered that I also went through tolls and paid with my iPass transponder. So it's like "paid toll", "missed toll", "paid toll", "missed toll", so I assume there's something wrong with the transponder. I called IDOT and they waived the fees and just charged me for the tolls. They said, "in the future, call ahead and tell us you missed the tolls." How would I know I missed the tolls?!?! The iPass transponder has no lights and doesn't beep. When I lived in Florida, we had Sun Pass. Sun Pass would beep one way to tell you it registered a toll and another way to tell you your account was low. I told the lady at IDOT this and she said the old iPass transponders were like that, but customers complained that they beeped too much. WHAT?!?! So how are you supposed to know when your transponder doesn't pay a toll so you can call and pay the toll before a notice with a fee is sent out? WTF?!?! Back to the transponder not working... I told her clearly it's not working if only half the tolls are registering and asked if the battery may be low. She said you can't replace the battery and only replace the whole transponder once it's determined the battery is dead. So I say "ok... replace my transponder." She replied, "well, you've only had it for three years and we usually don't replace them until after 6 or 7 years because that's how long the batteries typically last." Umm... life expectancy of a battery can vary. So if I miss a toll, I'm supposed to call ahead of time.... But the transponder doesn't tell me when I make or miss a toll.... my battery might be dead... but they won't replace the transponder until after 6 years. What a cluster fsck.